Hi hope you can help

On an imported video captured from my screen I get colour blotches where the screen changes fast eg a progress bar and scrolling text.

Using a simple program like Windows live movie maker I do not get it.

What is the solution to this please

Original is an AVI file captured using Camstudio and a Camstudio Lossless Codec v1.4

Every player I have can handle the original file with no issues